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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I solved this by using the option perminute . But if I want to
add two OIDs and get the rate of change it is given a wrong value. How can I overcome
this?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Gayan S. Amarasiri <br>
<b>Sent:</b> Friday, July 03, 2009 2:53 PM<br>
<b>To:</b> 'Steve Shipway'; mrtg@lists.oetiker.ch<br>
<b>Subject:</b> RE: How to add values of two OID in MRTG<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks Steve. It is working. Now I need to plot a rate of change
of values given by a OID. Let say on OID gives a counter value. I need to get
the rate of change in this OID values. How can I do this?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Steve Shipway
[mailto:s.shipway@auckland.ac.nz] <br>
<b>Sent:</b> Friday, July 03, 2009 3:41 AM<br>
<b>To:</b> Gayan S. Amarasiri; mrtg@lists.oetiker.ch<br>
<b>Subject:</b> RE: How to add values of two OID in MRTG<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:black'>Two possible ways.</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>1.
Define a Target which does the calculation:</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Target[xxxx]:
oid1&oid1:comm@device + oid2&oud2:comm@device</span><o:p></o:p></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>This
will give you a Target graph showing the total of the two OIDs </span><o:p></o:p></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>See
the MRTG documentation on <a href="http://www.mrtg.org">www.mrtg.org</a> for
more details about calculations in the Target definition.</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>2.
If you are using RRDTool as your backend, you can use the Routers2 frontend and
then define a Userdefined summary graph over the two separate Targets, and have
the graphs stacked.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>routers.cgi*Graph[maths]: allmarks
total</span><o:p></o:p></p>
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<div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>routers.cgi*Graph[science]: allmarks
total<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>routers.cgi*GraphStyle[allmarks]:
stack<o:p></o:p></span></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>See
<a href="http://www.steveshipway.org/cgi-bin/routers2.pl">http://www.steveshipway.org/cgi-bin/routers2.pl</a>
for an example of this frontend (look at the Linux system CPU graphs)<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Number
(2) looks prettiest and lets you see the individual components, but (1) is
simpler if you don't have Routers2/RRD installed yet.<o:p></o:p></span></p>
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<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Steve<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mrtg-bounces@lists.oetiker.ch [mrtg-bounces@lists.oetiker.ch] On Behalf Of
Gayan S. Amarasiri [Gayan.Amarasiri@dialog.lk]<br>
<b>Sent:</b> Thursday, 2 July 2009 10:42 p.m.</span><o:p></o:p></p>
</div>
<div>
<div>
<div id=MAILCIAMA054-913d4a48dda230f>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif"'>I need to add
two parameters and show it in graph using MRTG. For example let say the OID
1.3.4.5.26.626.26.26.0 gives Mathematics marks and the OID
1.3.4.5.26.626.26.27.0 gives the Science marks. I need to draw a graph for the
total marks which is the addition of the vales of the above OIDs. How to do
these type of stuff? Appreciate your help.</span><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
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